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Many people are familiar with melatonin, a hormone that helps ready the body for sleep. But there’s another, lesser-known chemical in the brain, called orexin
Galaxies are like cosmic gems, each with characteristics including size and shape that make them distinct. A gallery from NASA’s Chandra X-ray Observatory and other
For thousands and sometimes millions of years, marine plankton all over the world built their spiral shells in one direction. Then, suddenly, the spirals switched
An exceptionally well-preserved fossilized molar belonging to an adult Pacific mastodon has surfaced in a nature preserve near San Francisco. Upon first glance, the ancient
Weakening Atlantic Ocean currents could cripple agriculture in some of the world’s major breadbaskets, threatening global food security and raising the price of basic commodities
While artificial intelligence (AI) systems can now solve challenging math equations and respond in human-like language, the question of AI consciousness has moved from the
OpenAI is at the center of another controversy over machines tackling big math problems. This one’s about the twin prime conjecture.
As heatwaves become more frequent and severe, scientists are studying whether heat acclimation can help protect vulnerable populations.
Tiny fragments of ancient alien tech may be strewn across the surface of the moon , and it may be relatively easy to find these
The brain undergoes dramatic changes during puberty and pregnancy, but during menopause, the organ’s structure remains remarkably stable, a new study suggests. The research, published
The CL Companion is Swarovski’s dedicated compact binocular, originally introduced 15 years ago, but has now been redesigned in 2026 to appeal to a wider
Historic data and predictions suggest cases will rise in East Africa and southern regions, while the threat may ease in West and Central Africa.
IBM and NASA have partnered to create a new artificial intelligence (AI) model capable of processing decades of lunar data so scientists can more accurately
Archaeologists excavating in southwestern China have discovered a cave that was used by Denisovans for more than 100,000 years. Five human fossils, scores of stone
